CN100592328C - Biometric authentication method, device and blood vessel image reading device - Google Patents
Biometric authentication method, device and blood vessel image reading device Download PDFInfo
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- CN100592328C CN100592328C CN200610067967A CN200610067967A CN100592328C CN 100592328 C CN100592328 C CN 100592328C CN 200610067967 A CN200610067967 A CN 200610067967A CN 200610067967 A CN200610067967 A CN 200610067967A CN 100592328 C CN100592328 C CN 100592328C
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/14—Vascular patterns
Abstract
A biometric authentication method, device and blood vessel image reading device. The biometric authentication device which uses blood vessel images of a human body to perform individual authentication, performs verification processing according to a detected body temperature. A temperature sensor, which detects the temperature of a body, is provided in a blood vessel image capture device. The temperature at the time of registration of a blood vessel image is stored together with the blood vessel image, and the temperature of the body at the time of use (at the time of verification) is detected; the temperature difference at the time of registration and at the time of use is reflected in the verification processing, and when there is a verification error, the cause of the verification erroris judged from the temperatures at the time of registration and at the time of use. Whether a verification error is due to temperature can be easily distinguished.
Description
Technical field
The present invention relates to carry out personal authentication's biometric authentication method, biometric authentication apparatus and blood vessel image reading, it utilizes the image characteristics as the blood vessel of anthropolith, specifically, the present invention relates to such biometric authentication method, biometric authentication apparatus and blood vessel image reading, that is, its be suitable for control test to the blood vessel image information of health verify the blood vessel image information of the health of registration.
Background technology
Human body has mass part, and for example retina, facial characteristics and the blood vessel of fingerprint and toe line, eyes can be used for differentiating the individual.In the last few years, along with the progress of biometric technology, provided the multiple device of biological characteristic that is used to discern anthropolith so that the individual is authenticated.
Wherein, the blood vessel of palm, the back of the hand and finger provides quite a large amount of personal characteristics's data, and blood vessel (vein) pattern remains unchanged throughout one's life from childhood, and is considered to unique fully, therefore is very suitable for the personal authentication.For example, in the authentication techniques of the prior art of the blood vessel image that adopts palm, when registration or during authentication, the user stretches out palm near the image acquisition equipment.Image acquisition equipment irradiate near infrared rays, this near infrared ray is incident on the palm of hand.The image acquisition equipment uses sensor to catch the near infrared ray that rebounds back from the palm of this hand.
Hemochrome in the red blood cell that flows in vein is oxygen loss.This hemochrome (reduced blood pigment) absorbing wavelength is near the near infrared ray of 760 nanometers.Therefore, in the time of near infrared ray incident palm in one's hands, only in having the zone of vein, weaken reflection, thereby can utilize the near infrared intensity of reflection to discern the position of vein.
For these blood vessel images are used for the personal authentication, the user at first uses the image acquisition equipment to be registered in the vein image data of the palm of his hand in the server or on the card.Then, in order to carry out the personal authentication, the user utilizes the image acquisition equipment to read the vein image data of his hand.The contrast checking of reading thus is with the vein pattern of vein image, verifies the registration vein image that the ID that utilizes the user retrieves, and based on similarity, carries out personal authentication's (seeing TOHKEMY No.2000-293643).
Along with the extensive employing of this biometric authentication apparatus, prospective users will use this device under various environmental baselines.For example, according to temperature, the blood vessel in the human body (as vein) may shrink or expand.Thus, under cold state, vein (blood vessel) may shrink, and makes the blood vessel image information that can read seldom, thereby causes verifying mistake easily.
Especially, during blood vessel image in reading hand or finger, because hand and finger are often directly in the sub-extraneous air of exposure, so the temperature of hand and finger changes with environment easily.For example, even biometric authentication apparatus is placed the indoor of temperature controlled environment, if the user enters the room from cold outdoor environment, his hand and finger may be under the low temperature so.If attempt biological characteristic authentication in this state, so as mentioned above, the blood vessel image information that can read seldom, thereby may produce the checking mistake.
Because the technology of prior art does not have to consider to carry out biological characteristic authentication under such environment, so that the contraction and the expansion of the blood vessel when considering registration and checking, so even individual man-hour of paying close attention in attempted authentication also exists and verifies the possibility that may fail.And the reason that can not judge authentication failed is a temperature contrast, and is still following true, that is, the blood vessel image that reads is not the individual's of concern a blood vessel image.
Therefore, the extensive employing of biological specificity confirming equipment is hindered, and this authentication failed makes the user feel that device is unreliable; Therefore, need further innovation, so that can under such environment, carry out biological characteristic authentication.
Summary of the invention
Thereby, an object of the present invention is to provide such biometric authentication method, biometric authentication apparatus and blood vessel image reading, it is in the security that keeps biological characteristic authentication, and the user's temperature when making it possible to according to use is carried out biological characteristic authentication by blood vessel image.
Further aim of the present invention provides such biometric authentication method, biometric authentication apparatus and blood vessel image reading, even user's temperature is between record time and different during use, it also makes it possible to carry out appropriate biological characteristic authentication.
Further object of the present invention provides such biometric authentication method, biometric authentication apparatus and blood vessel image reading, even user's temperature is between record time and different during use, and the checking mistake has taken place, it also can be distinguished because the checking mistake that temperature contrast causes.
Further object of the present invention provides such biometric authentication method, biometric authentication apparatus and blood vessel image reading, even user's temperature is between record time and different during use, and the checking mistake taken place, also can distinguish the checking mistake reason be since record time between and the temperature contrast between the operating period cause, and can take appropriate action, to carry out biological characteristic authentication at the user.
In order to reach these purposes, biometric authentication apparatus of the present invention has: the image acquisition equipment, and it catches the image of the blood vessel in the health; Temperature Detector, it detects the temperature of health; The IC-card reader/writer, it carries out read/write to IC-card, has stored the performance data and the temperature when registration blood vessel image performance data of user's blood vessel image in this IC-card; And control module, it extracts the blood vessel image performance data from the blood vessel image of catching thus, carry out it is verified with the blood vessel image performance data of registering in the contrast IC-card in checking is handled.And control module detects the temperature catch during the blood vessel image from Temperature Detector, and according to detected temperature when image is caught and in IC-card the difference of the temperature during registration, distinguish the reason of checking mistake.
Biometric authentication method of the present invention has following steps: image is caught step, uses the image acquisition equipment to catch the image of the blood vessel in the health; The temperature detection step, the serviceability temperature detecting device detects the temperature of health; Read step reads the performance data and the temperature when registration blood vessel image performance data of user's blood vessel image from IC-card; The checking treatment step extracts the blood vessel image performance data from the blood vessel image of catching in checking is handled, and verify impinging upon the blood vessel image performance data of registering in the IC-card; And detect and differentiate (distinguish) step, detect temperature when catching blood vessel image from Temperature Detector, and, the difference between the temperature according to detected temperature when image is caught during with registration in IC-card, the reason of mistake is verified in discriminating.
Blood vessel image acquisition equipment of the present invention is such blood vessel image reading, it utilizes the registration blood vessel image to verify the image of the blood vessel in the health of catching, and be used in the biometric authentication apparatus, to carry out the personal authentication, this blood vessel image acquisition equipment has: image capture unit, and it catches the image of the blood vessel in the health; And Temperature Detector, its temperature that detects health is to be reflected in the checking.
In the present invention, preferably: the difference between the temperature when control module is registered according to detected temperature when image is caught and in IC-card, change is used to verify the criterion of processing.
In the present invention, preferably: the difference between the temperature when control module is registered according to detected temperature when image is caught and in IC-card, change is used for handling the threshold value of judging similarity in checking.
In the present invention, preferably: control module differentiates that the checking mistake is because the fact that the difference between the temperature of detected temperature when registering causes when image is caught in IC-card, and on the display part, showing a guide picture, the prompting user heats to the body part of catching blood vessel image from it.
In the present invention, preferably: described device also has and is used for unit heater that the user's body of catching blood vessel image from it is partly heated, and control module differentiates that the checking mistake is because the fact that the difference between the temperature of detected temperature when registering causes when image is caught in IC-card, thus the operate heater unit.
In the present invention, preferably: Temperature Detector is arranged in the image acquisition equipment.
In the present invention, preferably: unit heater is arranged in the image acquisition equipment.
In the present invention, preferably: control module has a table, difference between temperature when this table is registered according to detected temperature when image is caught and in IC-card, storage is used for handling in checking the modified value of the threshold value that is used as the similarity criterion, and, with reference to this table, change the threshold value that is used for handling the standard of judging similarity in checking.
In the present invention, by storing the blood vessel image temperature in when registration with blood vessel image, and detect the temperature of health by (when the checking) in use, can be in checking be handled during the reflection registration and the difference of the temperature in when use.And when generation checking mistake, can judge the reason of checking mistake, thereby can differentiate easily that whether the checking mistake is owing to temperature contrast causes according to the temperature between record time and between the operating period.
Description of drawings
Fig. 1 shows the formation of the biological characteristic authentication system of one embodiment of the invention;
Fig. 2 shows the formation of the service area device among Fig. 1;
Fig. 3 is the external view of the image acquisition equipment among Fig. 1;
Fig. 4 shows the formation of the image acquisition equipment among Fig. 3;
Fig. 5 shows another formation of the image acquisition equipment among Fig. 1;
Fig. 6 is the external view of the ATM among Fig. 1;
Fig. 7 is the block diagram of the ATM of Fig. 6;
Fig. 8 is the functional block diagram that the biological information registration/authentication in the embodiment of the invention is handled;
Blood vessel image in Fig. 9 key diagram 8;
The blood vessel image data of Figure 10 key diagram 9;
Figure 11 is the block diagram of the formation that is used for biological characteristic authentication of the embodiment of the invention;
The data that Figure 12 shows the IC-card in the diagrammatic sketch 11 constitute;
Figure 13 shows the flow process of the biological characteristic performance data registration process among Fig. 8;
Figure 14 is first figure of the flow process of the biological characteristic performance data checking processing in the embodiment of the invention;
Figure 15 is second figure of the flow process of the biological characteristic performance data checking processing in the embodiment of the invention;
The formation of the threshold value correction chart during the checking that Figure 16 shows Figure 14 is handled;
Figure 17 illustrates that the similarity of the checking of Figure 14 in handling judge;
Figure 18 is the block diagram of the formation of the biological characteristic authentication in another embodiment of the present invention;
Figure 19 illustrates the palm image acquisition equipment in another embodiment of the present invention;
Figure 20 is the external view of the ATM in another embodiment of the present invention;
Figure 21 is the viewgraph of cross-section of the finger blood vessel image acquisition equipment among Figure 20; And
Figure 22 is the viewgraph of cross-section of another finger blood vessel image acquisition equipment among Figure 20.
Embodiment
Below, embodiments of the invention are described in the following order: biological characteristic authentication system, biological characteristic authentication processing, biological characteristic authentication formation, biological characteristic performance data registration process, biological characteristic performance data authentication processing, other biological characteristic authentication mechanism, other biological characteristic performance data authentication processing and other embodiment.
The biological characteristic authentication system
Fig. 1 shows the formation of the biological characteristic authentication system of one embodiment of the invention, Fig. 2 shows the formation of the commercial terminal device/service area end device among Fig. 1, Fig. 3 is the external view of the image acquisition equipment among Fig. 1 and Fig. 2, Fig. 4 shows the formation of the palm image acquisition equipment of Fig. 3, Fig. 5 shows another formation of the image acquisition equipment among Fig. 1 and Fig. 2, Fig. 6 is the external view of the automated transaction machine among Fig. 1, and Fig. 7 shows the formation of the automated transaction machine of Fig. 6.
Fig. 1 shows the example of the palm vein Verification System in the financial institution, as the example of the biological characteristic authentication system that uses blood vessel image.Be arranged in the service area 2 of financial institution at palm image acquisition equipment 1 illustrated in fig. 3 and connected commercial branch terminal (for example, personal computer) 3.The user of one request vena identification launches to place palm image acquisition equipment 1 (hereinafter: " image acquisition equipment ") top with his hand.Image acquisition equipment 1 reads the palm image, then extracts by the blood vessel image in the end device 3 and handles, and has extracted vein pattern, and it is registered in the end device 3 as the vein data.
These vein data are recorded among the storage unit 4a of the database server 4 that is connected to end device 3, and are recorded in and will be blocked on (for example, the IC-card) 5 by the individual that the user holds.This server 4 is connected to the service area end device 8 in the service area 7 of financial institution; This service area end device 8 is connected to image acquisition equipment 1.
Withdraw the money or some other financial transactions in order to carry out at service area 7 places of financial institution, the user inserts IC-card 5 in the IC-card reader shown in Fig. 2, and his hand is launched to be placed at image acquisition equipment 1 top that is provided with in the service area 7.Image acquisition equipment 1 reads the palm of this hand, and utilizes the blood vessel image extraction processing in the service area end device 8 to extract vein pattern.Service area terminal 8 is carried out checking and is handled, and verifies vein pattern as the vein data with the vein data of registration in the contrast IC-card 5, thereby authenticates this individual.
Fig. 2 and Fig. 3 show the commerce/service area end device 3 of Fig. 1 and 8 formation.As shown in Figure 2, end device 3 and 8 has been installed commercial application 30 and vena identification storehouse (program) 34.On the other hand, end device 3 and 8 is connected to intravenous sensor (palm image acquisition equipment) 1 and IC-card reader/writer 9.
IC chip in 9 couples of users' of IC-card reader/writer the IC-card 5 and magnetic stripe are carried out and are read and write.In IC-card reader/writer 9, be provided with secure access module (SAM), make and only accept authorized access, thereby, the security of IC-card 5 protected.
As shown in Figure 3, the palm image acquisition equipment 1 of Fig. 1 and Fig. 2,1-1 sensor unit 18 with the central authorities that are installed in master unit 10 substantially.Guide portion 14 before the front portion of sensor unit 18 (user side) is provided with is provided with back guide portion 19 at rear side.Preceding guide portion 14 comprises a transparent or transparent substantially synthetic resin board.Before guide portion 14 be used for forwardly user's hand channeling conduct and support the purposes of wrist.
Therefore, as shown in Figure 4, preceding guide portion 14 provides guiding to the user, with guiding above sensor unit 18 and supporting wrist.As a result, can control the attitude of palm above sensor unit 18 of hand, that is, and position, degree of tilt and size.The shape of cross section of preceding guide portion 14 has a vertical body, and at the top, has the horizontal part 14-1 that is used to support wrist.Central authorities at horizontal part 14-1 are formed with recess 14-2 continuously, so that place wrist.Back guide portion 19 is used for the supporting finger.
The horizontal part 14-1 of supporting wrist is provided with contact-type temperature sensor 20.Contact-type temperature sensor 20 for example comprises the resistive film that its resistance changes with temperature; On the horizontal part 14-1 of guide portion 14 time, as shown in Figure 4, contact-type temperature sensor 20 contacts with wrist, and detects the temperature (that is the temperature of hand) of wrist before the user places his wrist.
As shown in Figure 4, sensor unit 18 is provided with infrared sensor (cmos sensor) and condenser lens 16 and range sensor 15 in central authorities; Be provided with a plurality of near-infrared luminous elements (LED) 12 at its periphery.For example, be provided with near-infrared luminous element, with the irradiate near infrared rays that makes progress in eight positions of periphery.
The readable area V of this sensor unit 18 is by the adjustment that concerns between sensor, condenser lens and the near-infrared luminous district.Therefore, the position of preceding guide portion 14 and highly being set to makes supported palm place readable area V.Launch and when making palm smooth, palm has maximum area, and is smooth at hand 72, thereby in the image trapping region V of sensor unit 18, palm is carried out image when catching, obtained to be used for the accurate vein pattern of registering and verifying.When the distance from sensor unit 18 to palm is in specialized range, utilize the sensor 16 of sensor unit 18 to obtain to focus on clearly image.
Therefore, as shown in Figure 4, by preceding guide portion 14 with wrist supports above sensor unit 18, can guide and support user's hand, thus with respect to the image capture range of sensor unit 18 make palm above sensor unit 18 position, degree of tilt and highly become accurate.
Next, utilize Fig. 5 that palm image acquisition equipment 1, the 1-1 of another kind of type are described.In Fig. 5, be endowed same numeral with part identical among Fig. 3 and Fig. 4.That is, sensor unit 18 is installed in the central authorities of master unit 10 substantially.Preceding guide portion 14 is arranged on the front portion (user side) of sensor unit 18, and back guide portion 19 is arranged on the rear portion.Similarly, preceding guide portion 14 is used for forwardly the hand channeling conduct to the user, and is used to support wrist.
Therefore, as shown in Figure 4, above sensor unit 18, adjust the attitude of palm, that is, and the position of palm, degree of tilt and size.In addition, the shape of cross section of preceding guide portion 14 has a vertical body, and on top, has the horizontal part 14-1 of supporting wrist.Central authorities at horizontal part 14-1 are formed with recess 14-2 continuously, so that place wrist.Back guide portion 19 is used for the supporting finger.
As showing among Fig. 5, sensor unit 18 is provided with infrared sensor (cmos sensor) and condenser lens 16 and range sensor 15 in central authorities; Be provided with a plurality of near-infrared luminous elements (LED) 12 at its periphery.For example, be provided with near-infrared luminous element, with the irradiate near infrared rays that makes progress in eight positions of periphery.
In addition, in sensor 18, be provided with and exempt from contact temperature sensor 20A.This is exempted from contact temperature sensor 20A and for example comprises infrared ray sensor (thermoelectric pile), and this infrared ray sensor detects the infrared ray from object.Therefore, before the user places his wrist in as Fig. 5 on the horizontal part 14-1 of guide portion 14 time, exempt from contact temperature sensor 20A and receive infrared ray, and detect the temperature (that is the temperature of hand) of wrist from the palm of hand.
Next, utilize the automated transaction machine of Fig. 6 and Fig. 7 key diagram 1 and Fig. 2.As shown in Figure 6, ATM (automated transaction machine) 6 has card insertion/ejection door 6-4, bank book insertion/ejection door 6-5, bank note insertion/dispense port 6-3, coin insertion/dispense port 6-2 in its front, and the client operating screen 6-1 that is used to operate and shows.
In this example, image acquisition equipment 1-1 is arranged on the side of client operating screen 6-1.Be installed in the front side of the master unit 10 of image acquisition equipment 1-1 at sensor unit 18 illustrated in fig. 4.Guide portion 14 before the front side of sensor unit 18 (user side) is provided with.Preceding guide portion 14 comprises transparent or transparent substantially synthetic resin board.Preceding guide portion 14 is used to guide hand forward, and is used to support wrist; For this reason, shape of cross section has a vertical body, and has the horizontal part 14-1 that is used to support wrist at the top.Central authorities at horizontal part 14-1 are formed with recess 14-2 continuously, so that place wrist.
In addition, the sensor unit 18 of master unit 10 is towards the rear portion and be inclined upwardly, and is provided with par 22 in its back.And similar with Fig. 3 and Fig. 5, the horizontal part 14-1 of preceding guide portion 14 is provided with contact-type temperature sensor 20, perhaps, is provided with in sensor 18 and exempts from contact temperature sensor 20A.
As shown in Figure 7, ATM 6 has: CIP (card reader printer) unit 60 that has card insertion/ejection door 6-4, bank book unit 64 with bank book insertion/ejection door 6-5, note/coin counter unit 66 with bank note insertion/dispense port 6-3 and coin insertion/dispense port 6-2, person on duty's operating portion 65, control part 67, client operating screen (UOP) 6-1 that is used to operate and shows, and image acquisition equipment (intravenous sensor) 1-1.
CIP unit 60 has: IC-card reader/writer 61, and its magnetic stripe and IC chip to IC-card 5 reads and writes; Receipt printer 63, its with transaction record on receipt; Journal printer 62, its historical record with transaction is printed on the daily record list; And secure access module (SAM) 70.
Bank book unit 64 is the record transaction on the page or leaf of bank book, and skips when needed.Person on duty's operating unit 65 is show state and executable operations when breaking down or during the person on duty checks.The currency and coins of 66 pairs of insertions of note/coin counting unit is verified, is counted and stores, and currency and coins is counted and is distributed by demand.
Control module 67 communicates with server 4, and this control module 67 has the ATM application 68 and the authentication storehouse (program) 69 that is used for authentication processing of control ATM operation.This ATM uses a part and authentication storehouse 69 concerted actions of 68, with the biological characteristic authentication guide picture of control UOP 6-1.
The biological characteristic authentication disposal route
Fig. 8 is the block diagram that the biological characteristic authentication in the embodiment of the invention is handled, the blood vessel image in Fig. 9 key diagram 8, and the checking of Figure 10 key diagram 8 is handled.
As shown in Figure 8, the situation in the authentication storehouse 69 of similar control module 67 for ATM 6 is connected to the service area device 3 of image acquisition equipment 1 and a series of registrations are carried out in 8 authentication storehouse 34 and checking is handled 34-1 to 34-6.Control module 67 in the service area device 3,8 and ATM6 for example have necessary other circuit of CPU, various types of storer, interface circuit and data processing.CPU carries out a series of registration and checking is handled 34-1 to 34-6.Illustrate that as following IC chip in the IC-card 5 is also carried out checking and handled 34-3.
The wide processing unit 34-1 that detects of distance/handwheel receives the distance of being measured by the range sensor 15 of image acquisition equipment 1,1-1, whether palm or other object of judging hand are in the specialized range of sensor unit 18, and detect the profile of hand, thereby judge according to profile whether this image can be used for registration and checking is handled according to the image of catching by sensor unit 18.For example, palm may fully not be presented in the image.
When indicating hand outside the image capture range in the distance of measuring by range sensor 15 or according to the position of the wide hand that extracts of handwheel, perhaps when image can not be used for registration and checking processing, the UOP 6-1 output message of 34-5 to the display and the ATM 6 of service area device 3,8 handled in the output of guiding message, with the guiding palm to the left or to the right, forward or backward, up or down.Utilize this method, the palm of user's hand is directed to the position of image acquisition equipment 1,1-1 top.
When the wide detection processing of handwheel 34-1 judgement had been caught image under the situation that hand correctly keeps, the blood vessel image extraction was handled 34-2 and extract the vein image from the image of hand.That is, the difference by reflectivity obtains the gray-scale data of the image of palm, as the gray-scale data among Figure 10.The vein image is an image as shown in Figure 9; Described data are the gray-scale datas such as the gray-scale data among Figure 10.Blood vessel image extracts handles the characteristic (main line of blood vessel and the direction of branch and number etc.) that 34-2 also extracts the blood vessel image of determining according to the blood vessel image data in advance of Figure 10.
The corresponding registration blood vessel image of individual ID (number of the account) data A, the B that 34-4 retrieval and storage part from the IC-card 5 shown in Fig. 1, Fig. 2 and Fig. 7 obtain handled in registration blood vessel search.34-3 is handled in checking, and detected blood vessel image data N1 compares with registration blood vessel image data N2 among the processing 34-2 to detecting at blood vessel image, carries out the checking processing, and output checking result, as shown in Figure 10.
In registration process 34-6,, and it is stored in the IC chip 50 of IC-card 5 via IC-card reader/writer 9,61 from detected blood vessel image extracting data blood vessel image performance data.Illustrate as following, will send to blood vessel image by the temperature of temperature sensor 20, the detected hand of 20A and extract processing 34-2, and use it for checking and handle among 34-3 and the registration process 34-6.
Thereby, in the present invention, in checking processing and registration process, use the detected temperature of temperature sensor 20,20A by image acquisition equipment 1,1-1.
Biological characteristic authentication constitutes
Next, use Figure 11 and Figure 12 to illustrate that the biological characteristic authentication of Fig. 2, Fig. 7 and Fig. 8 constitutes.Figure 11 shows the IC-card 5 among the ATM 6 of Fig. 7 and Fig. 8 and the formation in authentication storehouse 69; Figure 12 shows the formation of the data division in the IC-card 5 of Figure 11.The commercial terminal the 3, the 8th of Fig. 2 constitutes similarly.
As shown in Figure 11, the authentication storehouse (program) 69 that is provided with in the control program 67-1 of ATM 6 has the wide detection processing of the distance shown in Fig. 8/handwheel 34-1,34-5 and blood vessel image extraction processing 34-2 are handled in the output of guiding message, also has application interface (API).Application interface API has the part that 34-3 and registration blood vessel image search processing/registration process (read/write processing) 34-4,34-6 are handled in checking.
On the other hand, IC-card 5 has CPU (CPU (central processing unit)) 50 and storer 52.The other parts of the registration blood vessel image search/registration process of CPU50 execution graph 8 (read/write processing) 34-4,34-6.Storer 52 has management data district 54, biological attribute data district 55, accounts information district 56 and history information district 57.
As shown in Figure 12, the management data district 54 memory access management information 1-n of IC-card 5, this access management information 1-n is associated the biological attribute data collection 1-n in the biological attribute data district 55 with accounts information collection 1-n in the accounts information district 56.
Each access management information (management data) collection 54-1 (1-n) comprises: the name of registration, I/procurator (through the authorized agent) distinguishes, the biological characteristic attribute (for example, the registration blood vessel image be at left hand or at the right hand), the temperature during the biological attribute data registration, cut-off date, amount of money limit and transaction sign (for example, withdraw the money, deposit, transfer accounts) at every accounts information index 1-n.
Each management data collection 54-1 (1-n) is associated each the biological attribute data collection 1-n in the biological attribute data district 55 one to one with index.On the other hand, management data collection 54-1 (1-n) and accounts information 56 are relations of a pair of n, wherein, by single management data collection a plurality of accounts information collection are associated.That is, the account index 1-n association of management data 54-1 a plurality of accounts information collection, and can limit the transaction that can be used for account (withdraw the money, deposit, transfer accounts etc.) by transaction sign.
Accounts information storage number of the account and Account Type (check, common, regular etc.).History information district 57 store transaction historical records.Transactions history recording storage trade date, biological attribute data number, accounts information number and transaction sign.
Thereby, in this embodiment of the present invention, in IC-card 5, store a plurality of management data collection and biological attribute data collection, and in management data, stored the temperature when biological attribute data is registered in addition.Utilize this temperature information, can carry out the biological characteristic authentication when being suitable for using, illustrate as following.
In addition, use and management data associate biological attribute data and accounts information.Even store a plurality of biological attribute data collection, history information also makes it possible to indicate the transaction user.
Biological characteristic performance data registration process
Next, utilize Figure 13 that the biological characteristic performance data registration process of Fig. 8 is described.Figure 13 shows the flow process of the biological characteristic performance data registration process in the IC-card 5.This registration process is that the situation at the service area 2 of Fig. 1 and Fig. 2 illustrates, but also can be carried out by ATM 6.
(S10) at first, applied for using user that IC-card carries out biological characteristic authentication to present IC-card and driving license or other file confirming his identity, and received identity validation from the distribution source at service area 2.
(S12) in a single day confirmed identity, the IC-card 5 that the user just holds him inserts in the IC-card reader/writer 9 of Fig. 2.In case the user has inserted IC-card 5, the API of the authentication storehouse 69 of Figure 11 (34 among Fig. 2) just sends reading order to the API 46 of IC-card 5, and reads the management data 54 (seeing Figure 12) in the IC-card 5.
(S14) in the time of above the user remains on his hand image acquisition equipment 1, the image of authentication storehouse 69 (34) execution graphs 8 of the control module 38 among Fig. 2 is caught and is handled 34-1,34-2,34-5, to obtain biological characteristic performance data (blood vessel image performance data).Then, the image of execution graph 8 is caught processing once more, thereby obtains the biological characteristic performance data once more.The API in the authentication storehouse 69 (34) of Figure 11 verifies that described two biological characteristic performance data collection are to confirm authentication.If authentication result is OK, the temperature when then using the temperature sensor 20 (or 20A) of image acquisition equipment 1 to detect registration.
Then, the API in the authentication storehouse 69 (34) among Figure 11 sends write command to the API 46 of IC-card 5, and writes biological attribute data 55, and writes management data 54 (see figure 7)s of IC-card 5.Specifically, the biological characteristic performance data is written to biological attribute data district 55.And, generate management data, the temperature when this management data comprises selected I/procurator's differentiation, name, accounts information index, transaction sign, registration etc., and this management data write management data district 54.
(S16) next, beginning registration confirms to handle.That is, carry out the test authentication.For this reason, the user launches his hand to place image acquisition equipment 1 top once more, then catches the image of palm.
(S18) use authentication processing to carry out checking, utilize Figure 14 that this authentication processing has been described below.Utilize this result to determine whether the registration biological attribute data can be used for authentication.
Like this, between record time, (hand) temperature when in IC-card 5, having stored blood vessel image performance data and detection.And, carried out the test authentication, to confirm the validity of registration blood vessel image data.When registration finished, authentication storehouse 34 automatic obliterated datas made to strengthen confidentiality.
The checking of biological characteristic performance data is handled
Next, utilize Figure 14 that the biological characteristic performance data checking processing of Fig. 8 is described to Figure 16.Figure 14 shows the flow process of the transaction processing that comprises the biological characteristic performance data checking processing of using IC-card 5; Figure 15 and Figure 16 have illustrated the blood vessel image data verification processing of Figure 14.Figure 14 shows the flow process that comprises the transaction processing that biological characteristic authentication is handled that automated transaction machine 6 is carried out; Also carry out similarly processing at service area 7.
(S20) under client's waiting status, the control module 67 of ATM 6 shows that on UOP 6-1 IC-card inserts picture.
(S22) when client inserts IC-card 5, the API in the authentication storehouse 69 among Figure 11 sends reading order to the API 46 of IC-card 5, and reads the management data 54 (seeing Figure 12) in the IC-card 5.
(S24) control module 67 of ATM 6 shows palm image capturing visual on UOP 6-1.The user indicates the hand with him to launch to place image acquisition equipment 1 top according to picture.The control module 67 of ATM 6 is carried out image illustrated in fig. 8 and is caught and handle 34-1,34-2,34-5, and obtains the biological characteristic performance data and the temperature T when using.
(S26) API in the authentication storehouse 69 of Figure 11 sends reading order to the API 46 of IC-card 5, and reads the biological attribute data 55 (seeing Figure 12) in the IC-card 5.
(S28) API in the authentication storehouse 69 of Figure 11 contrast is caught the biological characteristic performance data of obtaining by image, comes the biological attribute data of registration in the verification management data 54, and carries out authentication.In this authentication processing, reflect temperature.That is, in checking is handled, calculate a plurality of performance data items at two blood vessel images (that is) similarity, the characteristic point data, and when the similarity of characteristic point is high, judge that the checking result meets the requirements.For example, as shown in Figure 17, mark and draw the similarity of characteristic point, and when Z-axis is marked and drawed frequency (similarity present number of times), obtained the characteristic of representing by solid line as in the figure along transverse axis.Usually, in full accord is rare, thereby is provided with the threshold value at similarity.And at the frequency of the similarity that is equal to or greater than this threshold value when being lower than the number of times of threshold value, be judged as two blood vessel image data sets identical.
When temperature was high, people's blood vessel became thicker, thus easier from blood vessel image extraction property exactly; On the contrary, when temperature is low, vessel retraction, thus extraction property has become difficulty from blood vessel image.Therefore, when the temperature between the operating period was higher than the temperature in when registration, the peak value in the similarity moved right (that is, shifting to higher similarity), shown in the dot-and-dash line among Fig. 7.On the contrary, when the temperature when using was lower than temperature between record time, the peak value in the similarity was moved to the left (that is, shifting to lower similarity), shown in the dotted line among Fig. 7.
Temperature when temperature during according to registration and use changes threshold value.Specifically, the threshold value correction function of the temperature T when temperature X when utilizing registration and use is revised level threshold value Th, make when temperature when using is higher than temperature when registering, threshold value among Figure 17 to the right (promptly, direction to higher similarity) moves, and on the contrary, during temperature when the temperature when using is lower than registration, the threshold value among Figure 17 (to the direction of lower similarity) left moves.
In this embodiment, temperature (checking temperature) T when being provided with use and the table of threshold value modified value, as the table among Figure 16, thereby can use and verify that temperature T obtains the modified value at threshold value from this table according to the poor n between checking temperature T and the registration temperature X.In this table, principal-employment big more (that is, the checking temperature T is compared high more with registration temperature X), then threshold value modified value forward is big more; And minus tolerance big more (that is, the checking temperature T is compared low more with registration temperature X), then the threshold value modified value on the negative sense is big more.As a result, during temperature when the temperature when using is higher than registration, level threshold value Th is bigger, and the threshold value of Figure 17 to the right the direction of higher similarity (that is, to) move; On the contrary, during temperature when the temperature when using is lower than registration, level threshold value Th is less, and the threshold value in Figure 17 left (to the direction of lower similarity) move.Utilizing this threshold value to judge the similarity of two blood vessel images and carry out authenticates.
(S30) when the authentication result among the step S28 undesirable (NG), whether the number of times of judging NG result is within stipulated number.If NG result's number of times is the overshoot number of times, then return IC-card 5.This fact is write the history information 57 of IC-card, perhaps write the electronic diary (storer) of the control module 67 of ATM6, and end process.
(S32) on the other hand, if NG result's number of times does not have the overshoot number of times in step 30, then judge whether to exist temperature anomaly.That is,, judge that then occurrence temperature is unusual in checking if the modified value of the threshold value of using more is defeated by fixed value (for example, " 3 " among Figure 16).When being judged as temperature anomaly, control module 67 shows a picture on UOP 6-1, and the guiding user heats to his hand, and returns step S24.If on the other hand, there is not temperature anomaly, then handle and return step S24.
(S34) next process advances to flow process among Figure 15.If on the other hand, authentication result is OK in step S28, then on the journal printer of Fig. 7 print needle to the people's that is subjected to biological characteristic authentication information, as history information.
(S36) read customer data part in certified user's (procurator or I) the IC-card 5.That is, the API in the authentication storehouse 69 among Figure 11 sends search command to the API 46 of IC-card 5, and reads accounts information 56 from the account index 54-1 of management data 54 (see figure 7)s of the IC-card 5 that is used for the related personnel.
(S38) control module 67 shows the accounts information of reading on UOP 6-1.User's account (pushing the account of demonstration) that selection is used to conclude the business from the accounts information that UOP6-1 shows.
(S40) read Customer Information data division in certified procurator or my IC-card 5.That is, the API in the authentication storehouse 69 among Figure 11 sends search command to the API 46 of IC-card 5, and reads the transaction sign from the account index 54-1 of the management data 54 (seeing Figure 12) of the IC-card 5 that is used for the related personnel.
(S42) control module 67 shows at the registration Transaction Details of reading account on UOP 6-1.The details (pushing the transaction of demonstration) of user's option dealing from the Transaction Details that UOP 6-1 shows.As a result, carry out the input of known turnover, transfer accounts destination input (under the situation of transferring accounts) and other transaction operation, communicate with main frame subsequently, carry out transaction processing.
(S44) conduct is counted cash under the situation of withdrawing the money from the result of the response of main frame, and prints receipt.Return IC-card 5 and receipt to the user, and the distribution cash.In addition, write historical record, perhaps, write historical record to the electronic diary of ATM 6, and close the trade to IC-card 5.
Like this, temperature when having stored the registration blood vessel image, and the difference of the temperature when formation and use (checking), the threshold value that change is judged at checking, even make because during registration and the fineness degree of the blood vessel in when use caused the difference of performance data, also be not easy to take place the checking mistake, thereby can carry out stricter blood vessel image checking.
In addition, under the situation of checking mistake, according to when registration and the temperature when using judge the reason of checking mistake, thereby can determine easily that whether the checking mistake is owing to temperature causes.And, because temperature causes under the situation of checking mistake, notify the user, and guide the user that his hand is heated, make the user recognize the reason of problem, thereby he can prevent to verify once more mistake in advance.
Other biological characteristic authentication mechanism
Figure 18 shows the authentication storehouse 69 of another embodiment of Fig. 8 and Figure 11 and the formation of IC-card 5.As shown in Figure 18, the authentication storehouse (program) 69 that is provided with in the control program 67-1 of ATM 6 has: 34-1 is handled in the wide detection of distance shown in Figure 8/handwheel, 34-5 is handled in the output of guiding message and 34-2 is handled in the blood vessel image extraction.
On the other hand, IC-card 5 has CPU (CPU (central processing unit)) 50 and storer 52.34-3 and registration blood vessel image search/registration process (read/write processing) 34-4,34-6 are handled in checking shown in the CPU50 execution graph 8.Storer 52 has the management data district 54 shown in Figure 12, biological attribute data district 55, accounts information district 56 and history information district 57, also has update mode district 58.
In this embodiment, checking is handled 34-3 and is arranged in the IC-card 5, and in addition, update mode information 58 is arranged in each management data item 54.Checking is handled 34-3 and is carried out authentication processing, and is this man-hour in the target of authentication processing, makes update mode information 58 (1-n) effective.In the time except enrollment time,, then can carry out writing of management data 54 and biological information 55 if it is effective to be used for the people's that paid close attention to update mode information 58m.
On the other hand, in the time except enrollment time,, then attempt writing management information 54 or biological information 55 and cause and return mistake if it is invalid to be used for the people's that paid close attention to update mode information 58m.That is, when the authentication result at me meets the requirements, can write biological information 55 and management information 54, that is, and registration, change and deletion procurator.Like this, guaranteed the security of the personal information in the IC-card 5, and, specifically, can not distort, thereby can prevent the leakage of personal information (biological information, management information).
Other biological characteristic performance data authentication processing
Figure 19 shows the formation of the palm reading device that uses in other biological characteristic performance data authentication processing of the present invention.In Figure 19, be endowed identical label to part identical described in Fig. 5 with Fig. 3.That is, in Figure 19, palm image acquisition equipment 1,1-1 have the sensor unit 18 of the central authorities that are installed in master unit 10 substantially.Guide portion 14 before the front portion of sensor unit 18 is provided with; Be provided with back guide portion 19 at the rear portion.Before guide portion 14 be used for forwardly user's hand channeling conduct and support the purpose of wrist.
The shape of cross section of preceding guide portion 14 has a vertical body, and at the top, has the horizontal part 14-1 that is used to support wrist.Central authorities at horizontal part 14-1 are formed with recess 14-2 continuously, so that place wrist.Back guide portion 19 is used for the supporting finger.
Contact-type temperature sensor 20 is arranged on the horizontal part 14-1 of supporting wrist.Contact-type temperature sensor 20 for example comprises the temperature variant resistive film of its resistance.On the horizontal part 14-1 of guide portion 14 time, contact-type temperature sensor 20 contacts with wrist, and detects the temperature (that is the temperature of hand) of wrist before user as shown in Figure 4 places his wrist.
In addition, the trailing edge at image acquisition equipment 1 is provided with well heater 22; The hair-dryer air outlet 23 of well heater 22 is arranged between sensor 18 and the back guide portion 19.In this embodiment, when judgement had taken place such as above-mentioned temperature anomaly, well heater 22 started, and from hair-dryer air outlet 23 heating installation is blown out on the palm of sensor 18 tops, thereby automatically user's hand is heated.
Promptly, in the step S32 of Figure 14, when temperature anomaly has taken place in judgement, control module 67 message that the display notification user heats the adversary on UOP 6-1, the well heater 22 of image acquisition equipment 1 starts, and from hair-dryer air outlet 23 heating installation is blown out on the palm of hand of sensor 18 tops, automatically user's hand is heated.
And like this, can prevent automatically because the checking mistake of the repetition that temperature contrast causes.
Other embodiment
In the above embodiments, utilize vein pattern in the palm of hand that biological characteristic authentication at authentication scenario has been described; But can also be applied to characteristic authentication at the vein pattern in the finger or other blood vessel.Figure 20 illustrates the formation of the automatic trading apparatus of the blood vessel image reading of having used another embodiment of the present invention; Figure 21 is the viewgraph of cross-section of the blood vessel image reading of Figure 20.
In Figure 20, be endowed identical label with part identical in Fig. 6 and Fig. 7.That is, ATM (automated transaction machine) 6 has in its front: card insertion/ejection door 6-4, bank book insertion/ejection door 6-5, bank note insertion/dispense port 6-3, coin insertion/dispense port 6-2 and be used to the client operating panel 6-1 that operates and show.In this example, the finger blood vessel image acquisition equipment 1B shown in Figure 21 is arranged on the side of client operating panel 6-1.
As shown in Figure 21, finger blood vessel image acquisition equipment 1B has the sensor 18B of the blood vessel image of catching finger 73.In addition, be provided with in the front portion of (as when sensor 18B observes) on the finger direction of insertion of image acquisition equipment 1B pointing the temperature sensor 20 that 73 temperature detects.
When use has the finger blood vessel image acquisition equipment 1B of this formation, can use above-mentioned registration and checking processing equally.Specifically, when using the blood vessel image of finger, Temperature Influence big than at the palm of hand, and quantity of information little than at the blood vessel image of palm make that this method is more favourable.
Figure 22 is the viewgraph of cross-section of another blood vessel image reading of Figure 20.In Figure 22, indicate by identical label with part identical among Figure 20.In this example, in sensor 18B, be provided with and exempt from contact temperature sensor 20A, and be provided with the well heater 22B that adversary's fingering row is heated in the front portion of (as when sensor 18B observes) on the finger direction of insertion of image acquisition equipment 1B.This example is corresponding to the embodiment of Figure 19, and by similar mode, and is can detected temperatures unusual, but and adversary's fingering row heat.
Blood vessel image is not limited to palm or finger, but also can be the back of the hand etc.The example of the automatic equipment of financial institution has been described in addition; But also can be applied to automaton and computing machine in automatic ticketing equipment, automatic vending machine and other zone, can also be applied to replace the door equipment that opens the door/close of key, and it need personal authentication's equipment.
In the above-described embodiments, the change of threshold value has been described, as the standard that is used to judge checking and authentication; But also can adopt other criterion.The combination of the well heater that the criterion of changing use in the authentication and the picture that provides the guiding adversary to heat or adversary heat has been described in addition; But separately at the change of the criterion of authentication, perhaps wherein provide picture that the guiding adversary heats or the formation that heats by well heater separately, similar favourable outcome all is provided.In addition, can guide adversary picture of heating and the Heater group that is used to heat altogether providing.
In above-mentioned, embodiments of the invention have been described; But can carry out various changes to the present invention within the scope of the invention, and these are not precluded within outside the scope of the present invention.
In the present invention, temperature when also having stored the registration blood vessel image with blood vessel image, and (in when checking) detects the temperature of health in use, thereby the difference of the temperature when temperature in the time of can in verifying processing, reflecting registration and use, and when the checking mistake took place, the difference of temperature in the time of can be according to registration and the temperature when using was judged the reason of checking mistake; Therefore, differentiate easily because the checking mistake that temperature causes.
The application is based on the No.2005-192869 of TOHKEMY formerly that submitted on June 30th, 2005, and requires the rights and interests of its right of priority, is incorporated herein by reference in its entirety.
Claims (12)
1, a kind of biometric authentication apparatus uses the blood vessel image of health to carry out the personal authentication, comprising:
The image acquisition equipment, it catches the image of the blood vessel in the health;
Temperature Detector, it detects the temperature of health;
The IC-card reader/writer, it carries out read/write to IC-card, and this IC-card has been stored user's blood vessel image performance data and the temperature when registration blood vessel image performance data; And
Control module, it extracts the blood vessel image performance data from the blood vessel image of catching in checking is handled, and the blood vessel image performance data of registering in the contrast IC-card verifies the blood vessel image performance data of being caught,
Wherein, control module detects temperature during catching blood vessel image from Temperature Detector, and according to detected temperature when image is caught and in IC-card the difference of the temperature during registration, differentiate the reason of checking mistake,
Wherein, the difference of the temperature when described control module is also registered according to detected temperature when image is caught with in IC-card, carry out in the following operation:
(1) change is used to verify the criterion of processing;
(2) on display unit, show the picture that the guiding user heats to the body part of catching blood vessel image from it;
(3) operate heater unit is with heating from its body part of catching blood vessel image to the user.
2, biometric authentication apparatus according to claim 1, wherein, the difference of the temperature when control module is registered according to detected temperature when image is caught with in IC-card, change is used for handling the threshold value of judging similarity in checking.
3, biometric authentication apparatus according to claim 1, wherein, Temperature Detector is arranged in the image acquisition equipment.
4, biometric authentication apparatus according to claim 1, wherein, unit heater is arranged in the image acquisition equipment.
5, biometric authentication apparatus according to claim 2, wherein, also comprise a table, the difference of the temperature when this table is registered according to detected temperature when image is caught with in IC-card, storage is used for handling in checking the modified value of the threshold value of the standard of judging similarity
And wherein, control module is shown with reference to this, changes the threshold value that is used for handling in checking the standard of judging similarity.
6, a kind of biometric authentication method, it uses the blood vessel image of health to carry out the personal authentication, may further comprise the steps:
Image is caught step, uses the image acquisition equipment to catch the image of the blood vessel in the health;
The temperature detection step, the serviceability temperature detecting device detects the temperature of health;
Read step reads user's blood vessel image performance data and the temperature when registering the blood vessel image performance data from IC-card;
The checking treatment step extracts the blood vessel image performance data from the blood vessel image of catching in checking is handled, and the blood vessel image performance data of registering on the contrast IC-card is verified the blood vessel image performance data of being extracted; And
Detect and differentiate step, from the temperature of Temperature Detector detection when catching blood vessel image, and the difference between the temperature when registering according to detected temperature when image is caught and in IC-card is differentiated the reason of verifying mistake,
Described biometric authentication method also comprise according to detected temperature when image is caught and in IC-card the difference of the temperature in when registration, carry out in the following step:
(1) change criterion step, change is used to verify the criterion of processing;
(2) step display shows the picture that the guiding user heats to the body part of catching blood vessel image from it on display unit;
(3) operate heater unit step, the operate heater unit is with heating from its body part of catching blood vessel image to the user.
7, biometric authentication method according to claim 6, wherein, change criterion step also comprises the change threshold step, the difference of the temperature when this change threshold step is registered according to detected temperature when image is caught with in IC-card, change is used for handling the threshold value of judging similarity in checking.
8, biometric authentication method according to claim 7, wherein, change criterion step comprises:
The difference of the temperature when reference table step, this table are registered according to detected temperature when image is caught with in IC-card, storage is used for handling in checking the modified value of the threshold value of the standard of judging similarity; With
The change threshold step, change is used for handling in checking the threshold value of the standard of judging similarity.
9, a kind of blood vessel image reading that in biometric authentication apparatus, uses, this biometric authentication apparatus contrast registration blood vessel image is verified the image of the blood vessel in the health of being caught, to carry out the personal authentication, this blood vessel image reading comprises:
Image capture unit, it catches the image of the blood vessel in the health;
Temperature Detector, it detects the temperature of health, differentiates the reason that the checking mistake produces with the difference of the image of being caught according to different temperature; With
Unit heater, this unit heater are used for when the number of times of undesirable authentication result is no more than pre-determined number and has temperature anomaly the body part of catching blood vessel image from it being heated,
Wherein, unit heater is arranged in the image capture unit.
10, blood vessel image reading according to claim 9, wherein, Temperature Detector is arranged in the image capture unit.
11, blood vessel image reading according to claim 9, wherein, image capture unit comprises the unit that the blood vessel image of the hand of health is caught.
12, blood vessel image reading according to claim 9, wherein, image capture unit comprises the unit that the blood vessel image of the finger of health is caught.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005192869A JP4704129B2 (en) | 2005-06-30 | 2005-06-30 | Biometric authentication method, biometric authentication apparatus, and blood vessel image reading apparatus |
| JP2005192869 | 2005-06-30 |
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| CN1892679A CN1892679A (en) | 2007-01-10 |
| CN100592328C true CN100592328C (en) | 2010-02-24 |
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| CN200610067967A Expired - Fee Related CN100592328C (en) | 2005-06-30 | 2006-03-10 | Biometric authentication method, device and blood vessel image reading device |
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| US (1) | US7729518B2 (en) |
| EP (1) | EP1739592B1 (en) |
| JP (1) | JP4704129B2 (en) |
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| CN (1) | CN100592328C (en) |
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| KR20020061375A (en) | 2001-01-16 | 2002-07-24 | 이승호 | Security management system by palm-vein pattern identification |
| KR100364388B1 (en) | 2001-01-16 | 2002-12-11 | 이승호 | Control method of security management system by palm-vein pattern identification |
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| JP4207717B2 (en) | 2003-08-26 | 2009-01-14 | 株式会社日立製作所 | Personal authentication device |
| CN101233459B (en) * | 2005-03-17 | 2011-01-26 | 成像器件系统股份有限公司 | Multimodal biometric analysis |
-
2005
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- 2006-02-07 EP EP06250656A patent/EP1739592B1/en not_active Expired - Fee Related
- 2006-02-07 ES ES06250656T patent/ES2332469T3/en active Active
- 2006-03-02 KR KR1020060020012A patent/KR100775408B1/en active IP Right Grant
- 2006-03-10 CN CN200610067967A patent/CN100592328C/en not_active Expired - Fee Related
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| EP1739592A1 (en) | 2007-01-03 |
| JP4704129B2 (en) | 2011-06-15 |
| ES2332469T3 (en) | 2010-02-05 |
| KR20070003533A (en) | 2007-01-05 |
| KR100775408B1 (en) | 2007-11-12 |
| US7729518B2 (en) | 2010-06-01 |
| EP1739592B1 (en) | 2009-10-07 |
| JP2007011769A (en) | 2007-01-18 |
| US20070003112A1 (en) | 2007-01-04 |
| CN1892679A (en) | 2007-01-10 |
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